Log Message:
Update to 2.6.2 based on patch from Mansour Moufid on pkgsrc-users.

IMAPFilter 2.6.2 - 30 Jun 2015
  - Bug fix; drop connection on local certificate mismatch.

IMAPFilter 2.6.1 - 29 Jun 2015
  - Support for loading the system's CA certificates from a file.
  - Bug fix; flusing of standard output/error in a some cases.

IMAPFilter 2.6 - 16 Jun 2015
  - Optimizations that vastly improve performance of the meta-searching
    functionality, by making subsequent search requests limit their scope based
    on the results already returned by previous requests (previously this was
    the case only for the match_*() methods).
  - Lua 5.3 compatibility (the codebase can still be compiled with versions 5.2
    and 5.1).
  - A new "limit" option can be used as a work-around for problems \ 
that some
    servers have with long requests.
  - The documentation now clarifies how to make the client block indefinitely.
  - Bug fix; the check_status() method now returns 4 numbers on error as
    described in the documentation (just negative values in this case).
  - Bug fix; flushing of default output on password prompt.
  - Bug fix; program fault when very long requests were to be sent.

IMAPFilter 2.5.7 - 16 Nov 2014
  - Support for automatic validation of SSL connections, using the operating
    system's installed trusted CA certificates (usually from authorities that
    are shipped with web browsers).
  - A new "wakeonany" option makes it possible to end IDLE mode on any \ 
event,
    not just on new messages.
  - A new "reenter" option controls whether IDLE mode should be re-entered,
    after the recovery of the session, which makes it possible to continue with
    the execution of the next line in the configuration file.
  - The documentation now mentions that the contain_*() methods do
    case-insensitive searching (an IMAP limitation).
  - The documentation now has a better explanation of the arrived_*() and
    sent_*() methods.
  - Bug fix; the value returned by the copy method was incorrect in some cases.